-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi again,
I'm attaching a rewritten version from VGA ROM, which mimics the BIOS init. Sadly enough it is still not hitting the all required regs to make powernow working as it is with orig bios. The rest register spill is the captured IO as it was. The top of the file is what bios is doing during the init. Just before it calls ax=0003 and exits the rom. There is also one interresting place: <------>write_cr((read_cr(0x36) & ~0x30) | (0x3 << 4), 0x36); <------>write_cr((read_cr(0x30) & ~0x4), 0x30); <------>/* just read, hope compiler won't optimize that out */ <------>tmp = inb(0x3da); <------>tmp = inb(0x3ba); <------>outb(0x0, 0x3c0); /* original bios has it but if I compile it in I get blank screen */ //<---->tmp = inb(0x3da); <------>tmp = inb(0x3ba); The bios is doing it exactly like this. But if I enable the inb(0x3da) I get no picture but monitors seems to have some signal. It works fine without those inbs. Any idea what is doing the code? Rudolf -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkn7bLYACgkQ3J9wPJqZRNURAgCePWfQfX+LvNtcpRsKoItO91M9 JvYAn2AsPg7iQM1WpV/tISD+3OU3rDiF =ifl1 -----END PGP SIGNATURE-----
vga_init.c
Description: application/octet
vga_init.c.sig
Description: Binary data
-- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
